After my Bosch 5" deep sixed, I bought the Festool Rotex RO125 sander and CT26 dust collector. I loved the quiet of the CT26 but the Rotex was too aggressive to replace the Bosch. So I bought the ETS125, because I couldn't justify the cost of the 150. After a while, I found the 125 to be a bit anemic and finally bought the ETS 150-3 and later the ETS 150-5 because I loved the performance of the 150-3 so much.
I used to dread sanding but no longer. I actually enjoy it, as long as we're not talking all day...
Were I to do it all over, I would buy the ETS 150-3, the 150-5 and the CT26 and never look back. Oh, and I'd add the Rotex RO90, too. That is one sweet little sander.
“Travel is fatal to prejudice, bigotry, and narrow-mindedness..." - Mark Twain